Very, very Niux scenic spot, really unexpectedly so large, there are holes in the hole, there are rivers in the hole, there are 8 minutes to appreciate the waterway alone, here remind you two points, the hole is very cold, I went in August, more than 30 degrees outdoors, 16 degrees inside the hole, children need to bring long sleeves into the hole. Secondly, I walk through the cave, which should be divided into three layers, the whole length of 4 kilometers, need to walk for 2 hours, also need to climb up and down, the highest drop is absolutely not more than 100 meters, do not compact this hole, with adequate rations in the cave of good complement strength.